body {
    background-color: #34495e;
    text-align: center;
    font-family: Arial, sans-serif;
}

.main-container {
    width: 80%;
    margin: auto;
}

.main-container h1 {
    color: #ecf0f1;
    font-size: 2em;
}

.main-container img {
    width: 100%;
    max-width: 600px;
    height: auto;
    display: block;
    margin: 0 auto;
}